Term
Keystone species
(Know the role, what does it do?) |
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Definition
Ecologically what happens means that when you remove one species from the ecosystem the rest of the ecosystem starts to fall apart
"Breaking the ecosystems balance." |
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Term
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Definition
| Energy levels of the food chain. |
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Term
| What does Autosomal mean? |
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Definition
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Term
| What is an alternative version of a gene? |
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Definition
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Term
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Definition
| Alleles separate during gamete formation |
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Term
| Law of Independent Assortment |
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Definition
| Alleles of genes on non homologous chromosomes assort independently during gene formation. |
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Term
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Definition
| When one loci controls more then two or more characteristics |
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Term
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Definition
| One locus alters the expression of another locus. |
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Term
| What was Lamarc's theory, which was proven wrong? |
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Definition
| Acquired traits are not inherited, DNA is what's inherited. - Lamarc's theory proven wrong. |
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Term
| A Homologous structure is? |
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Definition
| Shared between 2 organisms (similar body parts) |
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Term
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Definition
| Independently evolved similar traits |
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Term
| 1000 students on campus, 640 express a recessive genotype. What is the frequency of the dominant allele? |
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Definition
p = 0.2
(How?)
N = 1000
recessive genotype = 640
=
p+q =1 * allele frequency
p^2+2pq+q^2=1 *genotype frequency
q = square root of q^2 = 640/1000 = square root of 0.64 = 0.8
Plug Q in and subtract from 1.
p+q=1 You want to know P. (freq of dominant allele) |
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Term
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Definition
Chance events in small population where you tend to find genetic drift. (plays bigger role in small pops)
Killing off diversity for the next generation of a populace. |
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Term
| Natural selection changes __________. |
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Definition
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Term
Natural selection = changes large pops. What if I said the founder population has an average size of 3 meters (the original population) after other plant species came and
colonized that island and joined and that plant the other size was 2 meters.
"what kind of selection would that be?"
(Think statistically) The word is
Directional ___________. |
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Definition
| "Directional Selection" is moving the mean value in another direction. |
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Term
| The mean stays the same but the variance is different; the tails of the distribution pull in so there really isn't that much variation |
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Definition
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Term
| Hypothesis that says Females prefer males that have green hair because green hair is an indication that they are free of parasites... |
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Definition
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Term
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Definition
| Two types in a population that balance each other out through time. |
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Term
| Biological species concept |
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Definition
| Produce viable offspring with members of your own species, but not of another species. |
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Term
| Stanley Miller (recreated the early earth atomosphere with water and electricity, condensation and evaporation) - what happened? |
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Definition
| Amino acids were created. Created abiotic environment spontaneously created amino acids. |
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Term
| Sequence of events, tell me how they fit in. What came first. How they all fit together in terms of origin of life on earth? |
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Definition
| Prokaryotes, Atmospheric oxygen, endosymbiosis, eukaryote, Animals, colonization of land. |
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Term
| Mitochondria section: (Remember some traits of Mitochondria and the theory that mitochondria behave similarly to bacteria.. what do they have in common?) |
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Definition
Different sized ribosomes, self replicate. replicate independently of the cells.
Several lines of evidence that this hypothesis was right. Bacteria and Ribosomes are similar.
Mitochondria replicate through binary fission. they are similar ish to bacteria. |
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Term
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Definition
| Hawaiian island, fruit flies landed on Hawaiian islands, now there is about a thousand. |
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Term
| Logistic Growth is expressed on a graph in a _ curve. |
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Definition
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Term
| What is a good phylogenetic clade? |
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Definition
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Term
| ______phyletic - not all species that are descended from common ancestor |
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Definition
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Term
| ___phyletic - group of species that are decended from more than one ancestor. |
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Definition
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Term
| What does the principle of maximum parsimony mean? |
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Definition
| easiest explanation of events possible when you make a tree chart to express ancestries. |
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Term
| polyphyletic group of eukaryotes, singled or multicelled, autotrophic, heterotrophic, saprotrophic, parasitic |
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Definition
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Term
Eukaryote - has ___________.
Prokaryote - has no _________ |
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Definition
Euk - Nucleus
Pro - No Nucleus |
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Term
| saprotrophic, multicellular, heterotrophic, stationary, hyphae & mycellium |
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Definition
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Term
| multicellular, autotrophic, cellwalls made of cellulose, vascular & nonvascular, alteration of generations |
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Definition
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Term
| Another word for a Sporophyte embryo is a |
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Definition
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Term
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Definition
| Protist group that is sister group to plants. |
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Term
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Definition
| Protist group that is sister group to animals. |
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Term
| Characteristics of chordates: |
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Definition
| Post anal tail, pharyngeal gills, notochord, nerve cord |
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Term
| dN/dT = rN (R stands for what?) |
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Definition
R intrinsic rate of increase -
and don't forget
K = carrying capacity ^^ |
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Term
| Exponential growth curve - curves ^_____ |
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Definition
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Term
birth rate - death rate
dN/dT = rN(K-N)/K
What happens when N>K
Population decreases when N>K |
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Definition
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Term
| Competitive exclusion principle |
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Definition
when there's two curves, you put them together.
One will die out. (because two are competing (-/-)) |
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Term
Beak sizes that vary.
One of them will develop massive beak, the other has a smaller beak.
The upper beak size has been displaced up and the other beak size has been displaced down, this is called character ___________. |
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Definition
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Term
Macarthur-Wilson model say - X axis = number of species, Y axis =
Immigration rate - line
Extinction rate - line
What was the difference in the lines?
Island Size, Distance from the mainland
Model of island biogeography
= number of species is on the x axis
the lines represent immigration & extinction
and the differences in the lines could be either island size (large island vs. small island)
OR
distance vs. mainland This one isn't a flashcard. Memorize this stuff. |
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Definition
Macarthur-Wilson model say - X axis = number of species, Y axis =
Immigration rate - line
Extinction rate - line
What was the difference in the lines?
Island Size, Distance from the mainland
Model of island biogeography
= number of species is on the x axis
the lines represent immigration & extinction
and the differences in the lines could be either island size (large island vs. small island)
OR
distance vs. mainland This one isn't a flashcard. Memorize this stuff. |
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